CN2830731Y - Two-stage double-sorption pump rotor - Google Patents
Two-stage double-sorption pump rotor Download PDFInfo
- Publication number
- CN2830731Y CN2830731Y CN 200520046059 CN200520046059U CN2830731Y CN 2830731 Y CN2830731 Y CN 2830731Y CN 200520046059 CN200520046059 CN 200520046059 CN 200520046059 U CN200520046059 U CN 200520046059U CN 2830731 Y CN2830731 Y CN 2830731Y
- Authority
- CN
- China
- Prior art keywords
- stage
- rotating shaft
- blade wheel
- impeller
- rotary shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a two-stage double-sorption pump rotor which comprises a rotary shaft, a shaft sleeve, locking nuts, packing seal or mechanical seal, wherein the packing seal or the mechanical seal is arranged on the rotary shaft. The utility model is characterized in that a first stage blade wheel and a second stage blade wheel are installed on the rotary shaft, wherein the first stage blade wheel is locked and fixed on the rotary shaft through the shaft sleeve and the locking nuts, and keys are arranged between the first stage blade wheel and the rotary shaft; the second stage blade wheel is locked and fixed on the rotary shaft through the shaft sleeve and the locking nuts, and the keys are arranged between the second stage blade wheel and the rotary shaft. A thrust bearing is arranged at the top end of the rotary shaft at the side of the first stage blade wheel, a radial bearing is arranged on the rotary shaft at the side of the second stage blade wheel and a coupling is arranged on a shaft at the outer side of the radial bearing. The mechanical seal or the packing seal between each blade wheel and the bearing is arranged on the rotary shaft, the first stage blade wheel is a double suction type blade wheel and the second stage blade wheel is a single suction type blade wheel. The utility model has the advantages that the pump lift of the utility model is two times as long as that of a single-stage double-suction pump, and the torque of a pump can be introduced from one end of the first stage blade wheel.
Description
Technical field
The utility model relates to a kind of pump rotor, particularly a kind of two-stage double suction pump rotor.
Background technique
Impeller of the general employing of water pump at present, but when the user needs high-lift water pump, common single impeller water pump can't be satisfied the demand, in order to satisfy the needs of user for high-lift pump, manufacturer considers to increase an impeller in the water pump of single impeller, become the two-stage water pump, but after having increased an impeller, the influence problem of the mutual alignment of the problem of the axially locating problem of impeller, residual axial force that pump operation produces and two impellers to pump performance appearred in water pump.
Summary of the invention
The purpose of this utility model is to solve existing the problems referred to above of two-stage water pump employing bilobed wheel in the prior art, and a kind of two-stage double suction pump rotor that can overcome above-mentioned shortcoming is provided.The utility model design two-stage double suction pump rotor, comprise rotating shaft, axle sleeve, locking nut, packing seal in the rotating shaft or mechanical seal, it is characterized in that: first stage impeller and secondary impeller are installed in rotating shaft, first stage impeller is locked in rotating shaft by axle sleeve and locking nut, between first stage impeller and rotating shaft, key is arranged, secondary impeller is locked in rotating shaft by axle sleeve and locking nut, between secondary impeller and rotating shaft, key is arranged, on the rotating shaft top of first stage impeller side, thrust-bearing is installed, in the rotating shaft of secondary impeller side radial bearing is installed, the axle upper coupling in the radial bearing outside, all there are mechanical seal or packing seal to be installed in the rotating shaft between every grade of impeller and the bearing, first stage impeller is a double-sucking type, and secondary impeller is the single suction formula.The utility model has the advantages that lift of pump is doubled than single-stage double-suction pump that the moment of torsion of pump can be imported into by first stage impeller one end, reduces pump shaft to size.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing is a structural representation of the present utility model,
Embodiment
Comprise rotating shaft 1 among the figure, axle sleeve 2, locking nut 3, packing seal in the rotating shaft 1 or mechanical seal 10, it is characterized in that: first stage impeller 4 and secondary impeller 5 are installed in rotating shaft 1, first stage impeller 4 is locked in rotating shaft 1 by axle sleeve 2 and locking nut 3, between first stage impeller 4 and rotating shaft 1, key 6 is arranged, secondary impeller 5 is locked in rotating shaft 1 by axle sleeve 2 and locking nut 3, between secondary impeller 5 and rotating shaft 1, key 6 is arranged, on rotating shaft 1 top of first stage impeller 4 sides, thrust-bearing 9 is installed, in the rotating shaft 1 of secondary impeller 5 sides radial bearing 7 is installed, in the rotating shaft 1 in radial bearing 7 outsides coupling 8 is arranged, every grade of impeller 4,5 with bearing 7, all there are mechanical seal 10 or packing seal 10 to be installed in the rotating shaft 1 between 9, first stage impeller 4 is a double-sucking type, and secondary impeller 5 is the single suction formula.
First stage impeller 4 can strengthen conveyance capacity, raising cavitation erosion performance, the automatically balancing axial force of impeller for double-sucking type can make that liquid enters impeller from both sides simultaneously.Secondary impeller 5 for the single suction formula can double lift, reduce pump shaft to size.
Claims (1)
1, two-stage double suction pump rotor, comprise rotating shaft, axle sleeve, locking nut, packing seal in the rotating shaft or mechanical seal, it is characterized in that: first stage impeller and secondary impeller are installed in rotating shaft, first stage impeller is locked in rotating shaft by axle sleeve and locking nut, between first stage impeller and rotating shaft, key is arranged, secondary impeller is locked in rotating shaft by axle sleeve and locking nut, between secondary impeller and rotating shaft, key is arranged, on the rotating shaft top of first stage impeller side, thrust-bearing is installed, in the rotating shaft of secondary impeller side radial bearing is installed, the axle upper coupling in the radial bearing outside, all there are mechanical seal or packing seal to be installed in the rotating shaft between every grade of impeller and the bearing, first stage impeller is a double-sucking type, and secondary impeller is the single suction formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046059 CN2830731Y (en) | 2005-10-28 | 2005-10-28 | Two-stage double-sorption pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520046059 CN2830731Y (en) | 2005-10-28 | 2005-10-28 | Two-stage double-sorption pump rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830731Y true CN2830731Y (en) | 2006-10-25 |
Family
ID=37135658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520046059 Expired - Fee Related CN2830731Y (en) | 2005-10-28 | 2005-10-28 | Two-stage double-sorption pump rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830731Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345082A (en) * | 2019-07-11 | 2019-10-18 | 浙江理工大学 | Impeller timing angle and the adjustable two-stage centrifugal pump device and method of span |
-
2005
- 2005-10-28 CN CN 200520046059 patent/CN2830731Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345082A (en) * | 2019-07-11 | 2019-10-18 | 浙江理工大学 | Impeller timing angle and the adjustable two-stage centrifugal pump device and method of span |
| CN110345082B (en) * | 2019-07-11 | 2024-04-05 | 浙江理工大学 | Impeller timing sequence angle and span adjustable two-stage centrifugal pump device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061025 Termination date: 20111028 |